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Most common storage types used with Windows Operating
Systems., with Basic Partition you can create Primary, Extended or Logical
Drives., you can also say it’s the Original disk.

In Basic Disk If a drive (ex: E: Drive) is used up we can format the drive
without any issues and recreate the File System and data.

Dynamic Disks: Dynamic
Disks works with Volumes.

It provides features which Basic Disk do not support., like the ability to
create volumes that cover multiple disks.

Types
of Dynamic Volumes:

Simple Volume: This can be extended.
Spanned Volumes: It can consists of upto 32 disks.
Striped Volumes: It can consists of upto 32 disks. ( RAID 0 ) [Block by block
striping]
Mirrored: It only consists of two disks ( RAID 1 ) [Block by block mirroring]
Striped with Parity: It can consists of upto 32 disks. (RAID 5 )

Simple Volumes:
Simple volume is a kind of dynamic disk volume.

Spanned Volumes: If one disk goes
down all files are lost & whole library goes unavailable. It utilizes one
disk at a time and when it fills it movies to the other disks.

Striped Volumes: Condition -> All
disk should be of same size.
It utilizes all available disk at a time, still performance will be of 1 Disk
times total disks., same as Spanned volumes if 1 disk fails whole library goes
down.

Mirrored Volumes: Condition ->
Disk should be of same size.
This is a fault tolerant volume, it makes use of two disk and it writes the
same file to two disks., you can attach both disk to a controller drive (SCSI
Controller ) two controller attaches to each drive for fault tolerant.

Striped Volumes: RAID 5

It writes a file to 3 disks (Ex: 1st Disk, 2nd Disk &
3rd Disk) and saves a parity information to another disk. So when a
disk falls all the data will be reconstructed using parity checksum.Difference between Basic Disk and
Dynamic Disk.

Basic Disk

Dynamic Disk

Industry Standard,
Primary partition can be read by Unix/Linux.

Logical Disk Manager,
easy to transfer disk to another server.

Single drive

Unlimited volumes

Laptops / Removable

Flexible volumes.

Adding and Breaking Mirrored Disks:

You can make use of Command line utility “Diskpart”,
run Command prompt with admin privilege:
and type-> DISKPART
DISKPART> Select Volume D:
Output: Volume 2 is the selected volume.
DISKPART>add disk3
Diskpart complete in adding a mirror to the volume.
DISKPART>break disk2 (will break)
DISKPART>break disk3 nokeep (this will delete the mirror)

Tata Consultancy Services Interview Question:
How many primary partition you can have in Basic Disk?
Ans -> You can have 4 primary partition in Basic Disk, or 3 primary
partition and 1 extended partition or logical partition.

This post was written by: WinAdmin.IN Team

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